Graduate Student Seminar Series

Study of vibrational wavepackets in hot iodine molecules with ultrashort laser pulses

In this talk, we introduce basic knowledge of wavepackets in a potential well and a mechanism for producing vibrational wavepackets in ground electronic states of molecules using femtosecond laser pulses, which is called the Lochfrass scheme. We both show our experimental results concerning vibrational wavepackets in ground electronic states of hot iodine molecules, created by short laser pulses, and also our simulations, which are in good agreement with our data. Based on simulations of the temperature-dependence of vibrational coherence, we conclude that for Lochfrass, the vibrational coherence is stronger in hot molecules than cold molecules.